Pliers



April 4, 1961 E. M. ARTHUR 2,977,674

PLIERS Filed Aug. 4, 1958 Inventor United Sttes PLIERS Evan MeirionArthur, The Elms, Rednal Road, West Heath, Birmingham, England FiledAug. 4, 1958, Ser. No. 752,953

1 Claim. (Cl. 29-429) be contracted tobe removed from a groove in thebore of a member, which pliers can be used both for expand- H ing orcontracting .a spring ring by moving the handgrips atent O Patented Apr.4, 1961 grips together as indicated by arrow b. The pivot pin 3 formheads to hold the levers together, whilst leaving the handgrip part 2afree to slide thereon under a head on the pin 3. The levers on theoperative side of the pivot have bent over portions 8 which lie at rightangles to the handgrip ends, that is to say parallel to the pivot axisof the pin 3, so that the projections 8 on the ends of the levers areparallel whilst moving towards or from one another. With thisarrangement, the engaging ends or pins 8a of the operative jaws of thepliers can easilybe seen by the operator, which facilitates engaging thepins 8a in the holes in the split ring. 7

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent is:

Pliers having pins on the operative jaws for engaging a split retainingring for expanding or contracting same, comprising two levers, a-pivotpin on which the levers are mounted, each lever comprising a handgripportion; on

of the pliers together. The invention hasfor its object pliers of thetype set forth which can be used for either expanding or contracting asplit ring and readily con,-

I verted from one use to the other. A further object of the inventionisa simple and robust construction. Referring to the drawings: 1

Figure 1 is a face view of a pair of pliers. constructed 1 according tothis invention.

Figure 2 is aside elevation of a portion of the pliers shown by Figure1, and

Figure 3 is a portion of a lever detached. 7

According to a convenient embodiment of this invention, two levers 1 and2 are pivoted together intermediate theirends and the handgrip portion2a of one lever,

outward from the pivot,'is made separate and adapted to be fixed ineither of two positionsto the portion 2b of the lever having anoperative jaw thereon and extending outwardly fromthe'pivot'3 inrelation to the handgrip .ofthe a other lever 1; The separate .handgrip2a has a close ended slot 4 therein which is engaged on the pivot pin 3of the levers. The other part 2b of the lever, beyond the pivot pin '3,has 'a quadrant-shaped tail-piece 5 in the form of a quadrants and hastwo notches 6 therein at right angles to one another. .Theseparatehandgrip 2a has a' one side of the pivot pin and an operative jawportion on the other side, the ends of the operative jaw portions" beingbent outwardly at right angles and carrying said ring expanding pins,one lever having a separate operative jaw portion formed separately froma separate hand grip portion, and both said separate parts being mountedto pivot on said pivot pin, a quadrant shaped tail piece on pivotingsuch separate handgrip portion on said pivot pin,

the slots in the said quadrant tail piece being separated by an angle sothat When said projection is engagedin one notch the separate hand griplies on one side of the other hand grip and when engaged in the othernotch it lies on the other side of said other hand grip, so that whenthe hand grips are moved towards one another, the operative jaws will bemoved together in; one position and away from one another in the otherposition.

projection 7 pressed therefromto project fromthe inner} one notch- 6thehandle endsof the levers are angularly arranged as indicated byb'roken lines so thatby pulling Ifaceof thehandgrip and such projection7, is adapted to I (:engage the notches 6 and by engaging :theprojection in 1,123,243

the handgrips together as indicatedgby arrows c a split ring can becontracted and when l'arrangedin the other notch, the split ring can beexpanded by pulling the hand- ReferencesCited in the fileof this patentUNITED STATES PATENTS.

, Champ Jan. 5, 1915 FOREIGN PATENTS "Germany "Ap,r. 22,1942

Heimann SeptQZ7, 1949 Strnisha Aug. 4, 1959

